Parkwood/ColumbiaThis Friday, Entertainment Weekly'sannual round up of the Best and Worst in Entertainment will hit newsstands, and as always, it includes a list of the best and worst music of 2016. You won't be surprised to find out that Beyonce's "Formation" has been named the Best Song of 2016, but some other songs on the list may surprise you.

EW says of "Formation," "No one piece of music could ever claim to be all things to all people but [it] lands pretty damn close.'" Also on EW's list of the Best Songs of 2016: Fifth Harmony's "Work from Home," which the mag calls "the year's most deliriously fun ride," and Sia's "Reaper," co-written by Kanye West, which EW calls "joyful and defiant."

Speaking of Kanye, his song "Ultralight Beam" is #4 on EW's list. Other entries include "Cranes in the Sky," by Beyonce's sister Solange, and "Boyfriend" by Tegan & Sara. Number 10 is a tie between two songs that were written or co-written by Taylor Swift: her ex-boyfriend Calvin Harris' "This Is What You Came For" and "Better Man" by country group Little Big Town.

"Taylor Swift released no solo material in 2016 but she still dominated as a songwriter," EW writes. "And while both these songs are wildly different...both cement her as one of her generation's finest songsmiths."

As for EW's Worst Songs of the Year, they include Lil Yachty's "One Night," "Two Birds, One Stone" by Drake, "Private Show" by Britney Spears, the remake of the Ghostbusters theme by Fall Out Boy and Missy Elliott and, surprisingly, the top-10 hit "i hate u i love you" by Gnash and Olivia O'Brien.

"The uninspired melody and blase rhymes only inspire one emotion in us," EW writes. "And it's not good."

Catie LaffoonPeoplemagazine reports that a group of artists who'll all be performing Friday night in New York City are also planning to team up for a charity single.

DNCE, Fifth Harmony, Hailee Steinfeld, Charlie Puth, Daya, Rita Ora, Tinashe and more will record a version of "Santa Claus Is Coming to Town" to raise funds for the Robin Hood Foundation, the New York City charity that fights poverty and homelessness. One hundred percent of the proceeds from the song will go to Robin Hood.

According to People, all the performers will sing the song Friday night at New York's Madison Square Garden, during the venue's annual Jingle Ball concert. The Robin Hood Board will match all proceeds earned by up to $100,000. You can also donate by texting 27722 to give ten bucks, or visit RH.org/give.

The clip -- which doesn't even feature Justin -- has racked up 1.8 billion views so far. The Biebs also makes the top 10 two more times, with his video for “What Do You Mean?” coming in at number five and the “Love Yourself (PURPOSE: The Movement)” visual at number six.

Adele’s video for “Hello” takes the number-two spot with more than 1.2 billion views. Number three is Fifth Harmony’s “Work from Home” video, which was also just named the top trending YouTube video of the year. Calvin Harris and Rihanna’s “This Is What You Came For” is number four.

Gregg DeGuire/Getty ImagesIt seems the thrill is gone for Sia and her husband of two years. The singer and filmmaker Erik Anders Lang have separated.

"After much soul searching and consideration we have made the decision to separate as a couple," the two say in a statement provided to ABC News by the singer's rep. "We are, however, dedicated to remaining friends. There will be no further comment."

The couple were married in Palm Springs, California in August 2014, two months after revealing their engagement.

They were notoriously private about their relationship, but they did attend some public events side by side. They were last photographed together at a pre-Grammys party back in February.

The reason? The success of her smash album 25, which sold a record 3.4 million copies in its first week. It spent 10 weeks at #1, and has subsequently gone on to sell over 9 million copies. 25 is also Billboard's top album of 2016. Its lead single, "Hello," stayed at #1 for 10 weeks on the Billboard Hot 100 and inspired memes, a Saturday Night Live skit, and a record-setting Carpool Karaoke segment.

Adele is alsoBillboard's Top Female Artist of the Year, Top Album Artist of the Year, Adult Contemporary Artist of the Year, Top Digital Albums Artist and Top Adult Pop Songs Artist. Her sold-out tour also ranked as the #4 tour of the year.

One of the year-end charts that Adele didn't top is Hot 100 Songs -- and that honor belongs to Justin Bieber.Go ahead and call it a comeback, because it very much is: the Bieb has the #1 song and the #2 song of the year on the chart: "Love Yourself" and "Sorry," respectively.

The last time an artist had both top songs of the year was back in 2004, when Justin's mentor Usher scored with "Yeah!" and "Burn."

Justin is alsoBillboard's Top Male Artist of the Year, Top Radio Songs Artist, Top Digital Songs Artist, Top Social 50 Artist and Top Pop Songs Artist.

Billboard's Top Duo or Group of the Year is pop/rock duo Twenty One Pilots, beating out Coldplay for the #1 spot, while R&B singer Bryson Tiller is the Top New Artist of the Year, beating out former One Direction member Zayn Malik for the honor.

Dick Clark ProductionsThe Billboard Hollywood Party segment of Dick Clark's New Year's Rockin' Eve with Ryan Seacrest will be packed with stars.

The segment, hosted by Fergie from Los Angeles, will feature performances from Niall Horan, Lukas Graham, Shawn Mendes, Emeli Sande and Fifth Harmony with Kid Ink and Ty Dolla $ign. In addition, Fergie will be performing two songs on the broadcast, which starts at 8 p.m. ET/PT on ABC December 31. More performers will be announced shortly.

As previously reported, the show will also feature Mariah Carey, DNCE, Gloria Estefan and country star Thomas Rhett performing live from New York's Times Square, with Jenny McCarthy doing live reporting and, of course, Ryan Seacrest presiding over the festivities.

Image Group LA/ABCHailee Steinfeld is stepping into a new gig. The singer has been named the new face of the REEF Escape sandal collection.

The sandals, which launch in January 2017, come in hot pink, mint and peach blended with tones of blush, coral and lime. Hailee will appear in a new ad campaign for the brand.

"I grew up in California and Reefs were a part of our daily uniform,” Hailee says in a statement. “The comfort and classic style that Reef brings to sandals is inimitable and I'm excited to represent a brand that has been a part of my life for as long as I can remember."

Sarah Barlow Stehpen SchofieldMeghan Trainor was set to perform at a string of holiday concerts, but she's now had to scrap all those appearances due to vocal issues.

On Instagram, Meghan writes, "I posted last week that I wasn't feeling great, but was powering through the best that I could. Unfortunately, I am not feeling any better and after leaving the doctor today, I have been put on a strict vocal rest for the next two weeks."

The Grammy-winner goes on to say that the cancellation "absolutely kills me," noting that she was "so excited to see all of you on the road." She notes that she's going to "go home and rest" so she can see her fans "as soon as I can."

"I love you so much and am so appreciative of your love and support that you constantly show me," she adds. "You mean everything to me. Can't wait to see you in 2017!"

In 2015, Meghan suffered a vocal cord hemorrhage which forced her to cancel her North American tour. She eventually underwent surgery and was able to get through her Untouchable tour earlier this year without incident.

Image courtesy CBSJust ahead of the premiere of her new Showtime documentary, Madonna: Rebel Heart Tour, the Material Girl herself took the passenger seat in the latest installment of "Carpool Karaoke" last night on The Late Late Show with James Corden.

Madonna might have sat down but she didn't sit still while riding around New York City in an SUV with endearingly star-struck James Corden.

The 58-year-old singer was ageless as ever in her black leather jacket, black jeans and fingerless gloves, rocking attitude from the moment Corden pulled into traffic. The two of them struck a pose for “Vogue” and Madonna ended with her leg stretched to the roof of the car. James tried to do the same, playing it for laughs.

As seen on the teaser released Monday, Madonna straight-up twerked in her seat to “B****, I’m Madonna.” She later shocked her host as she talked about the difference between her life on stage and off, saying she doesn’t drink or smoke and that at home, she’s like Julie Andrews.

The pair also sang “Papa Don’t Preach” and “Don’t Cry For Me Argentina,” from the Evita soundtrack, before moving on to the topic of Michael Jackson. Not only did she kiss, Madonna did tell, admitted that she encouraged Jackson a little with some chardonnay before she made her move on him. “It worked wonders,” she said.

James was clearly having the time of his life and Madonna seemed to enjoy herself, especially while performing “Ray of Light” and “Music.”

“That was the only time I haven't minded being stuck in traffic,” Madonna said at the end.

Madonna: Rebel Heart Tour premieres on Showtime, Friday, December 9 at 9 PM ET/PT, and on Showtime on demand December 10.

L-R: Garrett Clayton as Link Larkin, Ariana Grande as Penny Pingleton, Ephraim Sykes as Seaweed J. Stubbs in “Hairspray Live!”; Paul Drinkwater/NBCHairsprayLive! the three-hour musical adaptation of the 2002 Broadway musical Hairspray, about a girl who finds overnight success in 1962 Baltimore, aired Wednesday night on NBC. And the production managed to delight, despite a few flubs, and a stumble from Ariana Grande.

Overall, the show went off without a hitch, save for some microphone and lighting glitches, and Ariana's trip during the number, “I Can Hear the Bells” -- although if you blinked, you might have missed it.

Ariana, who played Penny Pingleton, didn't have any problems belting out other songs in the show, like "Without Love" and the finale, "You Can't Stop the Beat." She also joined Jennifer Hudson for an encore duet, "Come So Far (Got So Far to Go)," as the cast took their bows.

The production also starred Dancing with the Stars pro Derek Hough, Broadway vets, Harvey Fierstein, Andrea Martin and Kristin Chenoweth, Martin Short, Sean Hayes, Billy on the Street’s Billy Eichner, and newcomer Maddie Baillio, as Tracy Turnblad. It also utilized the live audience as the audience for the play’s fictional Corny Collins Show, as well as the finale.

There were also surprise cameos from former Tracy Turnblads Rikki Lake and Marissa Winokur, as Mr. Pinky’s assistants, as well as the original “Dynamites.”

As with previous live TV adaptations, fans expecting a live version of either the 1988 John Waters film or the 2007 reboot were probably a little lost, since this one stayed truer to the Broadway play. The show also didn’t shy away from drawing parallels between the 60s civil rights movement and current tensions.

C. Taylor CrothersWhy download multiple Christmas songs this season when you can just buy one -- and raise money for a good cause, too?

The all-star Christmas collective Band of Merrymakers has a single out called "A Very Merry Medley," a mashup of 10 holiday classics. Performers include Sugar Ray's Mark McGrath, Lisa Loeb, Neon Trees' Tyler Glenn, American Idol's Constantine Maroulis and the Merrymakers' co-founders: Better than Ezra's Kevin Griffin and hit songwriter Sam Hollander.

"The idea was so good, I dare someone to think of a better idea this year," McGrath says of the medley, now added to the group's 2015 album Welcome to Our Christmas Party. "[Merrymakers] is an evolving collective, and I think even getting one new song a year is quite an accomplishment from how busy everybody is."

Musicians On Call brings music to hospital patients, and the Merrymakers did the same last week, visiting a children's hospital in New York City.

"We went floor to floor...and we went room to room in each of them," says Hollander. "And we played 'Jingle Bells' somewhere around 400 times in different variations...it was such a powerful, tough day and it just puts all of this in incredible perspective."

Mark McGrath says he's already signed up for next year's Merrymakers project -- partly to impress his six-year-old twin girls.

"My kids love the Band of Merrymakers, they love the songs," he laughs. "They want me to sing those songs year round. 'Not Daddy’s regular songs. Daddy’s Christmas songs!' they call ‘em. So Daddy’s cool this time of year."

Kevin Mazur/Getty Images for Two Ten Footwear FoundationFans have been waiting more than 10 years for the follow-up to Fergie's super-successful solo debut, The Dutchess. Well, it turns out that Fergie's just as anxious as they are to see it released.

"I'm hoping for ASAP, as soon as possible," Fergie told Music Choice about when she plans to put the album out. "I'm going for January, that's what I'm trying [for], but first of the year, first coupla months, I'm hoping for January."

"Everyone's gotta do the holiday thing and all of that," she adds. "But I'm ready: ready to let this thing into the universe!"

Fergie's been working on the album, which is reportedly called Double Dutchess, for quite some time and has already released two new tracks from it this year: "M.I.L.F. Money" and "Life Goes On." She revealed to Music Choice that she's so far into the project that she's already shot a number of videos for it.

"I have filmed a few things that are special," she says "I got to shoot videos in a lot of different places. I have a video that I shot in Paris for a song called 'Just Like You,' about an unhealthy relationship. And I got to shoot in London, a video called 'Nuttin'.'"

She describes that song as "very super throwback hip-hop to the '90s."

Before Double Dutchess comes out, though, you'll see Fergie hosting -- and performing on -- the Hollywood Party segments of Dick Clark's New Year's Rockin' Eve with Ryan Seacrest, airing on ABC December 31.

The Dutchess came out in 2006 and produced three #1 hits, and five top-five singles in all.

Kevin Mazur/Getty Images for The Weinstein CompanyKaty Perry's relationship with Orlando Bloom is going strong: the two are planning a holiday vacation together, a source tells People magazine.

The couple has already gone to Hawaii, Italy and France during their relationship, which started sometime around January of 2016. "Orlando is very happy with Katy. They are not engaged yet, but are very serious,” dished the source.

How serious? They've already met the parents, according to People: Orlando spent Thanksgiving with Katy and her clan, while Katy went to England earlier this year to meet Orlando's family, including his mom and his son Flynn, whose mom is Orlando's ex, Miranda Kerr.

“Orlando loves how independent and strong Katy is. He is very proud of how much she got involved with the election,” says the insider.

Trae Patton/NBCAlicia Keys and Pentatonix will be ringing in the New Year live from Times Square in New York City. They’ll be performing on NBC’s New Year’s Eve with Carson Daly.

The hour-long special starts at 11:30 p.m. on December 31. Alicia’s co-star on The Voice, country singer Blake Shelton, will also be performing. In addition to this appearance, Pentatonix will also star in their own NBC holiday special later this month.

“New Year’s Eve is always a thrilling night to broadcast live from Times Square,” Carson Daly says in a statement. “The excitement of the ball dropping, great music and millions of friends and families coming together to celebrate is incomparable.”

Craig Sugden/CBSAdele is number one on this year’s list of top trending videos on YouTube -- but it’s not for one of her own clips. Instead she tops the list for her “Carpool Karaoke” segment with James Corden.

The segment has been viewed more than 135 million times since it aired January 13. In it, Adele rides around London with the Late Late Show host. She sings along to some of her own tunes, shows her love for “Wannabe” by the Spice Girls, and impressively raps Nicki Minaj’s verse in the Kanye West hit, “Monster.”

Meanwhile, Fifth Harmony topped the list of YouTube’s top trending music videos with their video for “Work from Home” featuring Ty Dolla $ign. The clip has racked up more than a billion views.

Calvin Harris and Rihanna’s video for “This Is What You Came For” was number two on the list. Others in the top 10 include The Chainsmokers’ “Closer” lyric video, Rihanna and Drake’s “Work” video, Mike Posner’s “I Took a Pill in Ibiza (Seeb Remix)" video, Sia’s “Cheap Thrills” lyric video and Zayn’s “Pillowtalk” video.

According to YouTube, the top trending videos were chosen based on time spent watching, sharing, commenting, liking and more.

Don Le StudioMike Posner's Grammy nod for Song of the Year for "I Took a Pill in Ibiza" seems like a left-field choice, but according to the singer, he's just as deserving as his competition in the category, which includes Justin Bieber, Beyonce, Lukas Graham and Adele.

"I think I deserve to be nominated. I think everybody else in the category deserves to be nominated," he tells Billboard. "There were a lot of good songs this year. I'm not the only good writer, but I'm one of them. And it feels good to be recognized by other writers and other musicians...and have them telling me my stuff doesn't suck. That's nice to hear from your peers."

Mike also believes that he pretty much willed his Grammy nod into existence.

"I think about it every morning -- seriously," he tells Billboard. "It's a goal of mine, and I'm pretty good at making my goals happen when they're the ones I really care about...So, yeah, I think [a Grammy win] is going to happen at some point -- if not this year, one year."

"I Took a Pill in Ibiza" is on Mike's current album At Night, Alone, and he plans to continue to release singles from it in the New Year. He also has a book of poetry, called Teardrops and Balloons, coming March 24, according to Billboard.

ABC/Fred LeeLady Gaga is speaking out about a very personal issue. In an open letter published on her Born This way Foundation website, the singer details her battle with post-traumatic stress disorder, which she publicly revealed on TV a few days ago.

She reveals that she was diagnosed after five years of experiencing chronic mental and physical pain. She’s now undergoing treatment. Gaga says her trauma partly stems from past events while she was on tour.

“I was overworked and not taken seriously when I shared my pain and concern that something was wrong,” she writes. “I ultimately ended up injured on the Born This Way Ball. That moment and the memory of it has changed my life forever.”

She adds, “The experience of performing night after night in mental and physical pain ingrained in me a trauma that I relive when I see or hear things that remind me of those days.”

Gaga adds that, while she is being treated with medication, "the most inexpensive and perhaps the best medicine in the world is words. Kind words…positive words…words that help people who feel ashamed of an invisible illness to overcome their shame and feel free. This is how I and we can begin to heal. I am starting today, because secrets keep you sick. And I don’t want to keep this secret anymore."

By opening up about her own struggle, Gaga says she hopes to raise awareness that PTSD can affect all sorts of people -- not just service members. She encouraged others who are in pain to seek help and ends her letter with a note from her psychologist urging the same.

Nathan JohnsonAt 18, Daya is the youngest artist this year to be nominated for a Grammy, and she can hardly contain her excitement.

"I'm on such a high right now, this is insane," she tells Billboard. Her collaboration with The Chainsmokers, "Don't Let Me Down," is up for Best Dance Recording. The singer says she was awakened by phone calls and texts with the good news.

"I had just woken up, so I was like, 'Is this part of my dream? I can’t tell.' And I was so ecstatic I texted all my friends and literally did a lap around my hotel room. I was completely alone but had the energy of like 30 people," she tells Billboard.

Two people she didn't get to celebrate with? Drew and Alex of The Chainsmokers. Though she'd just seen them the previous night, Daya says, "We didn’t talk about the Grammys because I guess they were probably nervous about it and it wasn’t even on my radar. We totally just dodged that subject, but they’re probably on such a high right now. They deserve it."

Ironically, Daya says her mom didn't want her to record "Don't Let Me Down" initially because she disapproved of their hard-partying image.

"She saw one of their music videos and it was a threesome, and she was like ‘I don’t know if I want you doing a song with them,’" she tells Billboard. "For the first couple of weeks I was like, ‘No, this is such a gonna be such a good song, you have to listen to me.’" Mom finally came around, Daya says, and now "loves them." "They're like family," says Daya.